Spirit Bloom is the rare tier of the Cherry Blossom mutation in Steal an Egg, and it is the single biggest income jump available to a high-tier egg. A Divine Cosmic Egg is already the rarest thing most players will ever carry back to their plot, but the mutation you roll on it at the Sakura Incubator decides whether it hatches for a couple of billion per second or more than double that.
Quick answer: Carry the egg to the Sakura Incubator in the Cherry Blossom zone, deposit 1.5K Sakura Crystals, buy the Luck Boost tiers before rolling, and confirm the result in the banner that reads “Your [Pet] Egg is now Spirit Bloom!” Base odds sit at 2.5%, and stacked Luck Boosts push that up to roughly 40%.
What Spirit Bloom does to pet income
A mutated pet keeps its name and rarity but earns far more per second. The gap between a plain pet, a Bloom pet, and a Spirit Bloom pet is large enough that a single successful roll can change your entire base output. Exact numbers scale with the weight of the egg you mutated, so two Spirit Bloom pets of the same species will not always match.
| Pet | Base income | Observed mutated income |
|---|---|---|
| Unicorn (Divine) | $1B/s | $2.2B/s Bloom, $4.3B/s Spirit Bloom |
| Mosasaurus (Eternal) | $185.4M/s | $3B/s Spirit Bloom |
| Oni Tiger (Eternal) | $600M/s | $3B/s Spirit Bloom |
| Cosmic Dragon | — | $3.7B/s Spirit Bloom |
| Stag (Secret) | $145M/s | $5.2B/s Spirit Bloom |
Note: the highest single-pet figure does not always come from the highest rarity. A heavy Stag egg that rolls Spirit Bloom can out-earn a Divine Unicorn that only rolled Bloom, which is why the mutation matters more than the tier of the egg you sacrifice it on.
Reaching the Sakura Incubator in the Cherry Blossom zone
The incubator sits at the end of the zone chain, past Forest, Lake, Desert, Jungle, Snow, Volcano, Abyss Ocean, and Prehistoric. You need enough Speed from treadmill training to survive the run, and you have to make the trip while physically carrying the egg you want to mutate. Dying or dropping the egg on the way means starting the carry again.
Later zones are where the valuable eggs actually spawn, and the corridors there are contested. Slow Mode gives you finer control when you are threading past a guarded nest with an egg in hand rather than sprinting flat out.
Sakura Crystals are the fuel for every mutation attempt, and they come from breaking trees in the Cherry Blossom zone. During The Great Bloom event window, an auto-swinging bat lets you farm a reserve without clicking through every tree, which is the practical way to bank enough crystals for several rolls in a row. You can check the current state of the experience on its official Roblox page.
How to mutate an egg into Spirit Bloom
Spirit Bloom odds and Luck Boost stacking
Every roll produces a mutation. The question is only whether it lands on the common Bloom result or the rare Spirit Bloom one. Without boosts the roll is heavily weighted toward Bloom, and even a fully boosted attempt fails more often than it succeeds.
| Setup | Spirit Bloom chance |
|---|---|
| Crystals only, no boosts | 2.5% |
| Luck Boosts stacked | Up to about 40% |
At 40%, three out of five attempts still come back as plain Bloom. Budget for that. Spending on boosts for a light or low-tier egg rarely pays back, so save the stacked rolls for Eternal, Secret, Cosmic, and Divine eggs with heavy weights.
How to confirm the mutation worked
The incubator returns a banner naming the egg and the result, in the form “Your Mosasaurus Egg is now Spirit Bloom!” or “Your Unicorn Egg is now Bloom!” That message is the definitive answer; there is no partial or upgradable state between the two.
After hatching, the pet card carries the mutation in its name and shows the new per-second figure. Equipping it updates your total base output, which is the second confirmation that the mutation applied. New species also register in the Pet Index, which grants permanent speed and money boosts as you fill it in.
Why a Divine egg still comes out Bloom
Rarity does not improve the odds. A 1,036kg Divine Cosmic Egg rolls on the same table as a Prehistoric or Cherry Blossom egg, so it can and often does return Bloom even with boosts active. Once the roll resolves, the mutation is locked to that egg and cannot be rerolled.
The other common failure is accidental. If a Roblox 2-Step Verification prompt appears over the game while you are at the incubator, the click that dismisses it can pass through and trigger the mutation before you have bought your boosts. Clear any pending account prompts before you deposit crystals.
Fused eggs behave the same way. Combining three Eternal Mosasauruses into one large egg produces a bigger egg, not better mutation odds, and a fused egg that rolls Bloom can hatch for far less than the Robux spent on the attempt suggests it should.
The practical takeaway is that Divine eggs are worth chasing, but the incubator is where their value is actually decided. Bank Sakura Crystals during The Great Bloom, hold your heaviest eggs until you can afford stacked Luck Boosts, and treat every roll as a one-time commitment. A run of Spirit Bloom hits on Mosasaurus, Cosmic Dragon, and Stag eggs is what pushes a base past 90 billion per second, and a Divine Unicorn that lands Spirit Bloom at $4.3B/s is currently the strongest single result a mutation can produce.
